Clay slate from
UK | |
| Semmons, W. (1885) Notes on a recent discovery of "connellite". Mineralogical Magazine, vol. 6, n° 30, 160-163. |
| Semmons, W. (1885) Notes on a recent discovery of "connellite". Mineralogical Magazine, vol. 6, n° 30, 160-163. |
UK | |
| Semmons, W. (1885) Notes on a recent discovery of "connellite". Mineralogical Magazine, vol. 6, n° 30, 160-163. |
| Semmons, W. (1885) Notes on a recent discovery of "connellite". Mineralogical Magazine, vol. 6, n° 30, 160-163. |